Gas burner



y 14 1959 J. M. DQWNING 2,894,570

GAS BURNER Filed May 24. 1954 I I z i l L I i 26 L LLJ INVENTOE.

JiM. .DowN/Ncf.

E MW ATTOR Y GAS BURNER Joseph M. Downing, Dayton, Ohio Application May 24, 1954, Serial No. 431,659 Claims. (Cl. 158-115) This invention relates to gas burners, particularly to burners as used in furnaces wherein an elongated pipe is disposed within the furnace for discharge of gas in multiple longitudinally spaced apart jets.

The object of the invention is to simplify the construction as well as the means and mode of operation of gas burners, whereby such burners may not only be economically manufactured, but will be more eflicient and satisfactory in use, adaptable to a Wide range of applications, and be unlikely to get out of repair.

A further object of the invention is to provide for simplified change in the heat output of a given apparatus by replacement of an orifice plate at the inlet end of the described pipe.

Another object of the invention is to provide for access to the described orifice plate which does not require a material disassembly of the parts of the apparatus.

A further object of the invention is to provide for a convenient and easily removable mounting of the igniter 'means directly on the burner.

Still another object of the invention is to provide a generally new burner structure in which individual tube mounts for burner tubes are installed in a permanent manner directly on the described pipe.

A still further object of the invention is to provide a novel and effective manner of admitting air to the described tube mounts for mixture with the gas jets.

A further object of the invention is to provide a gas burner possessing the advantageous structural features, the inherent meritorious characteristics and the features of construction herein set forth.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention intended to be protected by Letters Patent consists'of the features of construction, the parts and combinations thereof, and the mode of operation as hereinafter described or illustrated in the accompanying drawings, or their equivalents.

Referring to the drawings, wherein is shown one but obviously not necessarily the only form of the invention,

Fig. 1 is a view in perspective of a section of the gas discharge pipe and the burner means thereon, constructed in accordance with the illustrated embodiment of the invention;

Fig. 2 is a view in cross section, taken substantially along the line 2-2 of Fig. 1 and enlarged relatively thereto;

Fig. 3 is a fragmentary view, inside elevation, of a burner mount as seen in Fig. 2, partly broken away;

Fig. 4 is a view in cross section taken substantially along the line 4-4 of Fig. 1;

Fig. 5 is a detail view, in side elevation of the burner tubes and igniter assembly mounted thereon; and

Fig. 6 is a view in longitudinal section, showing the connection between the gas supply conduit and the discharge pipe.

Like parts are indicated by similar characters of reference throughout the several views.

@tates Patent Referring to the drawings, a gas burner in accordance with the illustrated embodiment of the invention comprises a discharge pipe 10 and it will be understood that such pipe will be of a size and configuration appropriate to specific installations. One end 11 of the pipe 10 is open to receive gas under pressure. The other end is closed. Between its ends, the pipe 10 is formed with a longitudinal series of small diameter radial holes 12 representing escape ports for the gas which flows therefrom in jet form.

In overlying, aligned relation to each hole 12 is a tube mount 13 having the form of a hollow, open ended cylinder split longitudinally at 14 for slight radial resilience. At its one end, each tube mount 13 has out turned feet or flanges 15 curved in complementary relation to the curvature of the pipe 10 and seating thereon on opposite sides of a respective hole 12. The flanges 15 are secured to the pipe 10, as by welding, holding the mounts 13 in an upright position on the pipe with the gas jets from the holes 12 concentrically discharging into the said one end of the mounts toward the opposite end. At the same end of the mounts 13, in alternating relation to the flanges 15, are openings or cut out portions 16. The openings or portions 16 extend through the said one end of each mount and a part of the distance toward the opposite end thereof, the construction and arrangement being such that air may be drawn into the tube mount, from the immediate vicinity of the hole 12 and entrained with the flowing gas.

Received in the said opposite ends of the mounts 13 are burner tubes 17, the mixture of air andgas entering the tubes 17 and flowing to the outer ends thereof where it is ignited and burns. The tubes 17 have a sliding fit in each mount 13 and may be easily inserted in and removed therefrom. Limiting inward telescoping movement of the tube 17 is a struck out lug 18 in the body of each mount 13. The lug 18 provides a lip or abutment on which the tube 17 rests, and is located to preclude entrance of the tube into the tube mount far enough to cover the air inlet openings 16.

The tube 17 engages the lug 18 through a step formation 20 on the lower end of the tube. By a relative rotary adjustment of the burner tube the steps on the formation 20 may be brought selectively to alignment with the lug l8 enabling a relatively greater or lesser penetration of the burner tube in its mount 13.

The burner tubes 17 provide a mounting for igniter means, a selected pair of the tubes having a bracket 19 attached thereto, as by a press fit or by brazing or the like. The bracket 19 has an upstanding wall 21 in which there is a slot 22 opening through the upper edge thereof. An igniter assembly which includes a flexible gas sup-ply line 23 and a tube 24 carries a second bracket means 25, a part of which is a wall 26 mounting screws 27. Placing the igniter assembly with the walls 21 and 26 in parallel, adjacent relation, the igniter assembly may be dropped downward with the shanks of the screws 27 received in the slot 22 to thereby attach the igniter assembly to the bracket 19. The bracket 19 is located to cause the upper end of the tube 24 to project above the ends of the burner tubes 17 and a radial slot 28 in the tube 24 provides for the issuing of a pilot flame across and between the selected pair of tubes 17.

The pipe 10 is supplied with gas under pressure from a supply conduit 29, connected to the pipe 10 by a T fitting 31. The stem or body portion of the fitting 31 receives the conduit 29, gas being thereby discharged into a chamber 32 in common communication with the body portion and the cross or head portion. One end of the latter portion receives the open end 11 of the pipe 10 which is externally threaded for this purpose. The other end normally is closed by a screw plug 33.

The end 11 of the pipe 10 is reduced in diameter and internally threaded to receive an orifice bushing which is aligned with the screw plug and has a nut portion 35 lying in the chamber 32. removing the plug 353 access may be had to the bushing 3 for purposes of installation and removal. Thus the rate of flow to the burners may be adjusted, and such adjus nent varied when necessary or desirable, by removal of one bus ing and substitution of other orifice bushings Fractically no disassembly and reassembly of parts is involved in such change.

From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail con-- struction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise but one of several modes of putting the invention into eitect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.

Having thus described my invention, 1 claim:

1. A gas burner, including a pipe open at one end to receive gas under pressure and closed at its opposite end, there being a longitudinal series of small diameter holes in the wall of said pipe between its ends discharging gas from said pipe in spaced apart jets; characterized by sheet metal tube mounts on said pipe, each of said tube mounts having diametrically opposed feet resting on said pipe on opposite sides of a hole therein and extending part way around the circumference of said pipe, said mount further comprising a tubular portion formed integrally with said feet at its base and extending in vertical aligned relation to said hole, the upper end of said tubular portion being open, said tubular portion having cut out portions at the front and back thereof extending upward from the base of said tubular portion toward the upper end thereof and being located between said feet in longitudinal alignment with one another and with said pipe, said out out portions serving as air inlets, burner tubes in telescoping relation with said mounts on the upper ends thereof receiving the mixture of air and gas, said burner tubes and said mounts being in sliding contact for easy installation and removal of siad tubes, and stops on said mounts struck out of the sides of said tubular portions between said out out portions and be neath the upper ends of said cut out portions defining V rests for said burner tubes.

2. A gas burner according to claim 1 further characterized by a multiple step formation on said burner tubes, said burner tubes being rotatably adjustable to select a step of said step formation for engagement with said stops.

3. A gas burner, including a pipe open at one end to receive gas under pressure and closed at its opposite end, there being a longitudinal series of small diameter holes in the wall of said pipe between its ends discharging gas from said pipe in spaced apart jets; characterized by tubular mounts for burner tubes longitudinally disposed in overlying relation to respective holes, said mounts having cut out portions extending from the lower or base end thereof toward the upper end, flanges on said lower or base end of the mounts secured to the pipe in embracing relation to the respective holes and in right angle spaced relation to said out out portions, said jets being discharged outward in said mounts and entraining air through said out out portions, burner tubes telescopically installed on said mounts by way of the upper ends thereof receiving the mixture of air and gas and limit stops struck out of the material of said mounts in a common horizontal plane with said cut out portions and circumferentially spaced therefrom, said stops providing a rest for said tubes short of covering relation with said cut out portions.

4. A gas burner including a pipe open at one end to receive gas under pressure and closed at its opposite end, there being a series of holes in the Wall of said pipe intermediate its extremities; characterized by a sheet metal tube aligned with each hole, each of said tubes having diametrically opposed flanges permanently attached to said pipe on opposite sides of the associated holes, cut out portions in the base of each tube in aligned relation, each tube being split longitudinally for resilience, a tubular burner resiliently connected in telescoped relation to each of said tubes, and projecting means internally of each tube, each of said tubular burners having means cooperable with said projecting means in the associated tube to selectively limit the telescoped relation of said burners to said tubes.

5. A gas burner including a pipe open at one end to receive gas under pressure and closed at its opposite end, there being a series of holes in the wall of said pipe for discharge of the gas in radial longitudinally spaced apart jets; characterized by burner tube mounts having cut out portions permanently mounted to said pipe over each of said holes, in alignment therewith, a burner tube telescopically received by each of said mounts having cooperating means to selectively limit the telescoping relation therebetween, bracket means mounted on adjacent burner tubes including a slotted wall portion and igniter means having connector means fixed thereto slidably engageable in the slotted wall portion of said bracket means for quick detachment therefrom as required, said igniter means being adapted to discharge a pilot flame between said adjacent tubes.

References Cited in the file of this patent UNITED STATES PATENTS 1,021,056 Lynde Mar. 26, 1912 1,196,230 Graves Aug. 29, 1916 1,220,128 Indahl Mar. 20, 1917 1,239,681 English Sept. 11, 1917 1,394,228 Sheridan Oct. 18, 1921 1,471,104 Cornwall et a1. Oct. 16, 1923 1,791,565 Killam Feb. 10, 1931 2,017,338 Brown Oct. 15, 1935 2,026,027 Evans Dec. 31, 1935 2,069,062 Forberg Jan. 26, 1937 2,096,886 Dodd Oct. 26, 1937 2,349,323 Whittington May 23, 1944 2,461,913 Mosier Feb. 15, 1949 2,582,582 Bottom Jan. 15, 1952 2,712,819 Rosen July 12, 1955 2,799,329 Smoker July 16, 1957 FOREIGN PATENTS 2,253 Great Britain of 1909 402,520 Great Britain Dec. 7, 1933 

